Flanging machine



Oct. l0, 1939. w. R. BEATTY FLANGING MACHINE 2 Sheets-Sheet 1 Filed June7, 1937 Oct. 10, 1939. w. R. EsEAT'l-Y FLANGING MACHINE Filed June ,'711957 2 sheets-sheet 2 Patented Oct. 10, 1939 UNITED STATES FLANGINGMACHINE William R. Beatty, Hammond, Ind., assignor to Beatty Machine &Manufacturing C'o., a corporation of Indiana Application June 7, 1937,Serial No. 146,713

10 Claims.

The invention relates `to machines for developing flanges onsheet metalplates; and has for its objects simplicity of construction and action,reliability and efficiency in operation, and ease of adjustment to thecharacter of the work to be performed.

The accompanyingdrawings illustrate the invention and indicate the modeof operation.

Fig. 1 is a side elevation of the machine, showing the parts as they arepositioned at the commencement of a anging operation;

Fig. 2 is a sectional view on the line 2--2 of Fig. 1;

Fig. 3 is a view similar to Fig. 1, showing the parts as positioned atthe completion of an operation;

Fig. 4 is a front elevation of the machine; and

Fig. 5 is a sectional view on the line 5 5 of Fig. 3.

'I'he frame I 0 of the machine is a heavy casting, generally U-shape inform, the opening, however, being horizontal. A removable and adjustabledie block II is mounted upon the lower arm of the frame and adjacent itsouter end. This block is apertured in its lower face, as indicated indotted lines at I2, to t upon a tenon carried by an adjustable plate I3,slidable in suitable ways in the upper face of the lower arm of theframe and being adjustable by means of screw bolts I4` engaging suitablethreaded sockets in the frame.

A clamping head I5, which cooperates with the die block, is carried by avertically reciprocable shaft I6, carried in the upper arm of the frameand being actuated by a motor, conventionally shown at I I as of thehydraulic type. A lateral arm I8 projects inwardly from the clampinghead I5, and to it is pivotally attached an oscillatable jaw I9, whichcooperates with a side face of the die block II to form a flange, as ona sheet of metal, indicated at Y.

The jaw I9 carries on its face a removable plate 20, of such form as toproduce the desired flange. This plate is removably secured to the faceof the jaw in any suitable manner, in order that it may be replacedbyanother of different face form. As indicated it is provided with a rib2I across its back face, being of dove-tail configuration to t within acorrespondingly shaped channel across the face of the jaw.

The jaw I9 is actuated by a reciprocable shaft 22, mounted in the upperarm of the frame and being parallel with the shaft I6 and controlled bya motor mounted on such upper arm, and conventionally indicated at 23 asofthe .hydraulic type. The shaft 22 carries adjacent its lower end aguide block 24, which reciprocates Within a channel formed in alongitudinal bearing abutment 25 on the inner face of the verticalelement of the frame. The shaft 22 is connected with the jaw I9 by meansof a link 26.

When the clamping head I5 is raised, as shown in Fig. l, the shaft 22 isalso drawn upwardly and the jaw I9 is swung backwardly with reference tothe head, as shown in Fig. l. The sheet y of metal to be operated uponhaving been placed upon the forming die, the clamping head is lowered tothe dotted lines position of Fig. 1, the jaw I9 being swung backwardlyby this operation. The shaft 22 is now forced downwardly by its motor,the jaw I9 being swung downwardly and forwardly to the position of Fig.3, and in this movement forming the flange .'r. Preferably the parts areso proportioned and related that when the head I5 is lowered to clampthe sheet y to the block II,` the shaft 22 remaining in the withdrawnposition, the link 26 is substantially aligned with this shaft, and thejaw I9 is approximately horizontal, and bears lightly on the sheet y, atits margin (see dotted lines, Fig. l). During the early part of thedownward stroke of the shaft 22, the link 26 functions as a pitman,swinging the jaw downward with a gradually diminishing movement aboutits pivot until the link is deflected to approximately forty-fivedegrees. 'Ihe link now assumes the character and action of the link of atoggle joint, receiving pressure laterally from the shaft 22,transmitting it longitudinally to the jaw, and reacting longitudinallyagainst the abutment 25, which performs the corresponding duty renderedby each link'of a toggle joint for its companion link (see Fig. 3).

The pivotal attachment of the jaw to the clamping head insures ampleclearance for the introduction and removal of the work and provides forthe application of the maximum bending pressure at the inner margin ofthe overhang and augmentation of such pressure as the movement of thejaw proceeds.

It being important that final pressure of the jaw I9 upon the newlyformed flange shall be delivered directly perpendicular thereto, the dieblock is adjusted to insure this action according to the thickness ofthe sheet being operated upon.

While I have shown and described a desirable and highly efficient formof embodiment of the invention, it may be given other forms within thescope of `theappended claims.

I claim as my invention:

1. In a hanging machine, in combination, a

laterally adjustable die block, a clamping head cooperating with theblock, an oscillatable jaw carried by the head, a toggle link connectedwith the jaw, means for applying power to the link to force the jawtoward the side of the block, and an abutment against which the linkreacts.

2. In a hanging machine, in combination, a U-shaped frame having itsopening horizontally disposed, a die block mounted on and adjacent theouter end of the lower arm of the frame, a power-actuated reciprocatingshaft carried by the upper arm thereof, a clamping head carried by theshaft and cooperating with the die block,

a clamping jaw pivoted to the head and cooperating with the side face ofthe die block, a second power-actuated reciprocating shaft carried bythe upper arm of the frame and being parallel with the first-namedshaft, a toggle link connecting the second-named shaft with the jaw, andan abutment against which the link reacts.

3. In a hanging machine, in combination a frame including substantiallyhorizontal upper and lower members and an upright member rigidlyconnected together, a die block mounted on the lower member, areciprocable shaft mounted in the upper member, a clamping head carriedby the shaft and cooperating with the die block, a flange forming jawpivoted to the side of the head facing the upright member, a secondreciprocable shaft mounted in the upper member, parallel with thehrst-named shaft and nearer the upright member, and a force-transmittinglink connecting the second-named shaft with the jaw.

4, In a hanging machine, in combination, a frame including substantiallyhorizontal upper and lower members and an upright member rigidlyconnected together, a die block mounted on the lower member, areciprocable shaft mounted in the upper member, a clamping head carriedby the shaft and cooperating with the die block, a hange forming jawpivoted to the side of the head facing the upright member, a secondreciprocable shaft mounted in the upper member, parallel with thefirst-named shaft and nearer the upright member, a force-transmittinglink connecting the second-named shaft with the jaw, and separate powermeans independently operable to reciprocate said shafts.

5. In a hanging machine, in combination, a frame including substantiallyhorizontal upper and lower members and an upright member rigidlyconnected together, a die block mounted on the lower member, areciprocable shaft mounted in the upper member, a clamping head carriedby the shaft and cooperating with the die block, a flange forming jawpivoted to the side of the head facing the upright member, a secondreciprocable shaft mounted in the upper member, parallel with thehrst-named shaft and nearer the upright member, guide means carried bythe upright member, a guide block carried by the second-named shaft andslidable in said guide means, and a force-transmitting link connectingsaid jaw and guide block.

6. In a hanging machine, in combination, a frame including substantiallyhorizontal upper and lower members and an upright member rigidlyconnected together, a die block mounted on the lower member, areciprocable shaft mounted in the upper member, a clamping head carriedby the shaft and cooperating with the die block,

a ilange forming jaw pivoted to the side of the head facing the uprightmember, a second reciprocable shaft mounted in the upper member,parallel with the first-named shaft and nearer the upright member, aforce-transmitting link connecting the second-named shaft with the jaw,and means cooperating with the lower member of the frame and with thedie block to adjust the die block toward and from the jaw.

7. In a hanging machine in combination, a suitable frame, a die block, apower actuated reciprocable clamping head cooperating with the block, aflange forming jaw pivotally carried by the head and adapted tocooperate with the side face of the block, a power actuated reciprocableshaft parallel to the path of movement of the head for oscillating thejaw, a link connecting the shaft with the jaw, the parts being soproportioned and related that as the jaw completes its advance strokethe link is dehected more than 45 from the axial line of the shaft, anda longitudinally disposed lateral bearing for the shaft.

8. In a hanging machine in combination, a suitable frame, a die block, apower actuated reciprocable clamping head cooperating with the block, aharige forming jaw pivotally carried by the head and adapted tocooperate with the side face of the block, a power actuated reciprocableshaft parallel to the path of movement of the head for oscillating thejaw and spaced approximately the length of the jaw from the pivotthereof, a link connecting the shaft with the jaw, the parts being soproportioned and related that as the jaw completes its advance strokethe link is dehected more than 45 from the axial line of the shaft, anda longitudinally disposed lateral bearing for the shaft.

9. In a hanging machine, in combination, a die block having a work piecereceiving surface and a side face forming an angle with said sur- 1 faceat one edge of the side face, a flange-forming jaw cooperating with theside face and mounted to swing toward the side face about a pivotconnecting one end of the jaw and a part of the machine relatively nearthe named edge of the side face and relatively remote from the oppositeedge thereof so that a point on the jaw spaced from the pivot describesthe arc of a circle during such movement, a link pivoted at one end tothe jaw at said point and positioned substanf tially tangent to thecircle at the beginning of a harige-forming operation, movable thrustmeans engaged with the other end of the link and arranged to apply tothe link force in the line of said tangent, and a hxed abutmentagainst'I which said other end of the link reacts during the latter partof its movement, whereby the jawmoving component of the force applied bythe thrust member increases from a minimum at the beginning of thehange-forming operation to a maximum at the end thereof.

10. In a hanging machine, in combination, a die block having a workreceiving face and a face forming an angle with such surface, aflange-forming jaw cooperating with the second named face and mounted toswing toward such face about a pivot mounted on a part of the machineadjacent to the named meeting edges of the die block, a link pivoted atone end to the jaw adjacent to its outer end and positionedapproximately tangent to the arc of movement of such pivot at thecommencement of the flange-forming operation, thrust means connectedwith the opposite end of the link and movable in a line parallel withthe second named face of the die block and adapted to apply pressure tothe link initially approximately in the line of such tangent, the linkswinging laterally toward the die block as the pressure continues andreaching an angle of more than forty-five degrees to the direction ofthe line of thrust before the jaw completes the ange-forming movement,and a xed abutment against which the rear end of the link reacts duringthe latter part of its stroke.

WILLIAM R. BEATTY.

